Pristomerus bicinctus Girault

Klopfstein, Seraina, 2016, Revising Australian Pristomerus (Hymenoptera, Ichneumonidae, Cremastinae): species with a tooth on the hind femur, Zootaxa 4168 (2), pp. 201-238 : 210

Pristomerus bicinctus Girault

Figures 7 , 26

Description. Fore wing length 5.2–7.7 (holotype: 7) mm. Antenna with 34–39 flagellomeres. Mesoscutum with only a few punctures along front margin and sometimes along notauli. Scutellum without punctures, all smooth and shining. Mesopleuron with strong and rather dense punctures, smooth in-between; below subtegular ridge smooth and with or without punctures, without any parallel, diagonal carinulae. Metapleuron with juxacoxal carina absent or at most a short basal carina. Propodeal areas smooth with strong punctures. Hind coxa smooth and shining between strong punctures. Hind femur length to width ratio 2.8–3.0 in male and 3.2–4.0 in female, ventrally with a large tooth that is longer than width of hind tibia at mid length, and adjacent smaller teeth. Hind tibia 1.9–2.4 mm. Second tergite 1.8–2.3 × longer than wide at base, smooth and shining. Ovipositor 1.7–2.5 × as long as hind tibia.

Colouration. Antenna uniformly brown or black, or with base orange. Face black or dark brown with orange inner eye margins and often also orange or yellow malar space, or entirely orange. Clypeus dark brown with orange apex or entirely orange. Back of head black or dark brown with outer eye margins orange, or entirely orange. Mesosoma entirely orange, except for propodeum which is orange basally, but usually black or brown apically. Hind femur black or very dark brown. Hind tibia black or dark brown, rarely orange brown or orange. Fore wing strongly infuscate, smoky-brown. Tergite 1 black or dark brown, sometimes with some orange at base, tergite 2 black or dark brown, tergites 3 onwards black or brown with wide, light apical bands that are often laterally interrupted by dark round mark.

Notes. Several specimens have an entirely orange head. As no other character was found to co-vary with head colouration, I assume that this lies within the species' variation.

Material examined. Holotype, ♀, at QM: Label data: 'Stradbroke / Island / H. Hacker / 2.10.11 ', 'HOLOTYPE', 'Types / Pristomerus / bicinctus Gir. ', 'Hy / 3043' [T3043], 'Lectotype / Pristomerus / bicintus / Girault / Townes 1969' (part of antenna and one hind tarsus missing).

Paratypes: QLD—Stradbroke Island; 2.x.11, leg. H.Hacker; 2 ♀, 2 Ƌ (including 'allotype') at QM. NSW— Araluen Hill ; x.1981, leg. I. Gauld; 1 Ƌ, at BMNH. NSW—Clyde Mountain; 5.iv.1960, leg. E.F. Riek; 1 ♀, at ANIC. NSW—Pokolbin; 15.i.1955, leg. I.G.Filmer; 1♀, at QM. QLD— 12 miles West of Biggenden ; 9.i.1972, leg. H.Frauca; 1 ♀, at ANIC.nQLD—Brisbane; 14.x.1913, leg. H.Hacker; 1 Ƌ, at QM. QLD—Coast Range, via Biggenden; 14.iii.1977, leg. H.Frauca; 1 ♀, at ANIC. QLD—Dalby, Brimblecombe ; 1.vi.1907; 1 ♀, at QM. QLD—Hurdle Gully , 14.8km WSW Monto, open forest, mv lamp, 24°55'S / 150°59'E ; 19.xii.1997, leg. Evans, Burwell, Ewart; 1 ♀, at QM. QLD—Mackay; v.1900; 2 ♀, at BMNH. QLD—Nambour; 20.ix.1992, leg. G.Waite; 1 ♀, at ANIC. QLD—Nanango District ; xi.1927, leg. H.Hacker; at QM. QLD—Tambourine Mountain; 28.ii.1911, leg. H.Hacker; 1 ♀, at QM. QLD—Tambourine; 28.xii.1954, leg. J.G.Filmer; 1 Ƌ, at QM. QLD—Toowong; vii.1896, leg. F.P. Dodd; 1 ♀, at BMNH. TAS—Coles Bay ; 13.i.1948, leg. E.F. Riek; 1 ♀, at ANIC.

Figures

FIGURE 7. Specimen of Pristomerus bicinctus Girault. A. Habitus and ovipositor tip. B. Face. C. Mesoscutum and head from above. D. Head and mesosoma from lateral. E. Propodeum. F. Metasoma. Scale bars represent 1 mm (A) and 0.5 mm (B, C, D, E, F).

FIGURE 26. Distribution maps for the species covered in this work, with the exception of P. atrifemur Girault for which only specimens of uncertain identification or with vague locality data were available.